side mirrors and rear view mirror? (graphic settings)

Premium

is there any way to to change settings on the SIDE MIRRORS and REAR VIEW MIRROR (not virtual) so that the quality is better? in all the vehicles i use/ drive in, looking to sides and rear, horrible, jagged/ corners and very low resolution graphics. is there a way to change this?
cheers all.

Premium

yes found it in the MAS files and figured it out with @PATR10T great help and guidance, basically need to have some MIRROR.BMP files handy and need to make sure one has the correct sizing/ aspect ratio also, basically two double them up or more, some cars have the MIRROR.BMP loosely in the folder and some are packed into the MAS file.some examples for MIRROR.bmp:
3072x192
4096x256
5120x320
6144x384
7168x448
8192x512